Hi Aaron, Seth et al:

Here is a close up of the lifting clamp for our contraption. It is the only 
part that is not made of 2x4 wood.

It requires about 6' of  1x1 x 1/8 " 6061 grade aluminum. Steel would be 
just as good but heavier. There are four patches of adhesive backed 
sandpaper at each end of the clamping bars ( brown in picture ). The 
vertical parts are 5/16 redirod going through 1/2 " electrical conduit. The 
conduit is there to make the vertical lifting part more resistant to bending 
if the weight of the box is not evenly distributed.

In use the horizontal redirod nuts are loosened and the device is dropped 
over the hive. The redirod  nuts are tightened with a 16 volt portable 
drill. Seth suggested that over centre clamps would be quicker to operate 
than tightening the nuts and I will try this when, if ever, I get some free 
time. This idea is attractive since it would avoid having to keep track of 
the drill and the nuts which is time consuming.

In the original picture I show an aluminum bipod which is much too 
complicated. I am going to replace it with a wooden one with a 2x4 upright 
bolted onto a 2x4 horizontal foot.

Best Regards

Donald Aitken, Edmonton Alberta

53° 41' 51" N 113° 37' 32" W
-----Original Message----- 
From: Aaron Morris
Sent: Friday, August 24, 2018 7:17 PM
To: [log in to unmask]
Subject: Re: [BEE-L] Fw: [BEE-L] How to avoid lifting heavy boxes

Thanks for the pictures Donald. Can you tell us more about the "lifting
device (that) is clamped to the boxes"?

Aaron Morris - awaiting arrival of a new industrial bee blower.

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